DE69223271T2 - Gerät zur Wiedergabe von Informationen zur Verwendung mit einer optischen Karte - Google Patents
Gerät zur Wiedergabe von Informationen zur Verwendung mit einer optischen KarteInfo
- Publication number
- DE69223271T2 DE69223271T2 DE69223271T DE69223271T DE69223271T2 DE 69223271 T2 DE69223271 T2 DE 69223271T2 DE 69223271 T DE69223271 T DE 69223271T DE 69223271 T DE69223271 T DE 69223271T DE 69223271 T2 DE69223271 T2 DE 69223271T2
- Authority
- DE
- Germany
- Prior art keywords
- pit
- data
- optical card
- signal
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000003287 optical effect Effects 0.000 title claims description 123
- 239000011295 pitch Substances 0.000 claims description 53
- 230000008859 change Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 10
- 230000015654 memory Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/0033—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with cards or other card-like flat carriers, e.g. flat sheets of optical film
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions
- G11B20/225—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions for reducing wow or flutter
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3133286A JP2977944B2 (ja) | 1991-05-10 | 1991-05-10 | 光カード装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69223271D1 DE69223271D1 (de) | 1998-01-08 |
| DE69223271T2 true DE69223271T2 (de) | 1998-03-19 |
Family
ID=15101098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69223271T Expired - Fee Related DE69223271T2 (de) | 1991-05-10 | 1992-05-08 | Gerät zur Wiedergabe von Informationen zur Verwendung mit einer optischen Karte |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5336872A (ja) |
| EP (1) | EP0512859B1 (ja) |
| JP (1) | JP2977944B2 (ja) |
| DE (1) | DE69223271T2 (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08171722A (ja) * | 1994-12-19 | 1996-07-02 | Nippon Conlux Co Ltd | 光学的情報記録再生方法および装置 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4734565A (en) * | 1983-10-12 | 1988-03-29 | Drexler Technology Corporation | Read-only optical card and system |
| US4705939A (en) * | 1984-09-28 | 1987-11-10 | Rjs Enterprises, Inc. | Apparatus and method for optically measuring bar code dimensions |
| US5010534A (en) * | 1984-12-29 | 1991-04-23 | Canon Kabushiki Kaisha | Optical information recording-reproducing apparatus |
| JPS6325868A (ja) * | 1986-07-18 | 1988-02-03 | Canon Inc | 光学的情報記録再生装置 |
| JPS6348618A (ja) * | 1986-08-15 | 1988-03-01 | Olympus Optical Co Ltd | 光カ−ドにおけるデ−タ再生方法 |
| JP2549664B2 (ja) * | 1987-07-31 | 1996-10-30 | オリンパス光学工業株式会社 | 光カ−ド装置 |
| JPH01256069A (ja) * | 1988-04-05 | 1989-10-12 | Olympus Optical Co Ltd | 光カード装置 |
| EP0674308B1 (en) * | 1989-02-13 | 1998-05-27 | Omron Corporation | Optical reproducing apparatus for a card |
| JPH02233074A (ja) * | 1989-03-07 | 1990-09-14 | Matsushita Electric Ind Co Ltd | 情報収録再生システム |
| JPH02282973A (ja) * | 1989-04-24 | 1990-11-20 | Canon Inc | 光学的情報記録再生装置 |
-
1991
- 1991-05-10 JP JP3133286A patent/JP2977944B2/ja not_active Expired - Lifetime
-
1992
- 1992-05-08 US US07/879,898 patent/US5336872A/en not_active Expired - Fee Related
- 1992-05-08 EP EP92304170A patent/EP0512859B1/en not_active Expired - Lifetime
- 1992-05-08 DE DE69223271T patent/DE69223271T2/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2977944B2 (ja) | 1999-11-15 |
| US5336872A (en) | 1994-08-09 |
| JPH04335261A (ja) | 1992-11-24 |
| EP0512859A1 (en) | 1992-11-11 |
| DE69223271D1 (de) | 1998-01-08 |
| EP0512859B1 (en) | 1997-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3424105C2 (ja) | ||
| DE3545996C2 (ja) | ||
| DE3851943T2 (de) | Verfahren und Gerät zur Aufnahme von magneto-optischen Platten. | |
| DE3042793A1 (de) | Verfahren zur kompensation von aenderungen der winkelgeschwindigkeit eines schwenkenden laserstrahles und vorrichtung zur durchfuehrung des verfahrens | |
| DE3618720A1 (de) | Verfahren und vorrichtung zur spurnachfuehrung bei bildplatten | |
| DE3136090A1 (de) | Nachfuehrservovorrichtung | |
| DE3523852C2 (de) | Speicheranordnung mit wahlfreiem Zugriff auf optisch lesbare Daten | |
| DE3040527C2 (ja) | ||
| DE3887601T2 (de) | Informationsaufnahme- und/oder -wiedergabegerät mit Mitteln zur Feststellung aller Spurfolgefehler. | |
| DE3137099C2 (de) | Vorrichtung zur Erfassung der Position eines optischen Strahles | |
| DE68913573T2 (de) | Wiedergabegerät für optisches Aufzeichnungsmedium. | |
| DE3830745A1 (de) | Verfahren und vorrichtung fuer optische datenaufzeichnung/wiedergabe | |
| DE3621326C2 (ja) | ||
| DE69016089T2 (de) | Gerät zur Ermittlung des Übersprechniveaus eines optischen Lesesignales. | |
| DE2543276A1 (de) | Wiedergabesystem fuer auf einem bandfoermigen traeger aufgezeichnete informationen | |
| DE3546067C2 (ja) | ||
| DE3245000C2 (ja) | ||
| DE3214950A1 (de) | Geschwindigkeitssteuervorrichtung fuer eine informationslese- und -wiedergabevorrichtung | |
| DE3887983T2 (de) | Spursprunggerät für speicherplattengerät. | |
| DE3884509T2 (de) | Aufzeichnungs-/Wiedergabe-Gerät für optische Karten. | |
| DE3610589A1 (de) | Aufzeichnungstraeger zur optischen informationsaufzeichnung und verfahren zur aufzeichnung und wiedergabe mit demselben | |
| DE3501609C2 (ja) | ||
| DE68914611T2 (de) | Methode und Gerät zur Feststellung der Zugriffsgeschwindigkeit für einen Plattenspieler. | |
| DE3503117A1 (de) | Abspielgeraet fuer aufgezeichnete daten | |
| DE69223271T2 (de) | Gerät zur Wiedergabe von Informationen zur Verwendung mit einer optischen Karte |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |